Corrugated Pipe for Subway Passage

The Engineered Solution for Modern Tunneling: Corrugated Pipe for Subway Passage
The large-diameter Corrugated Pipe for Subway Passage represents a revolutionary approach to underground infrastructure, offering a safer, faster, and more cost-effective method for creating pedestrian and utility tunnels. We engineer massive structural plate assemblies that harness the proven strength of soil-steel composite design to build secure and durable subterranean corridors.

The Strategic Advantage of Corrugated Steel Tunneling
Utilizing a Corrugated Pipe for Subway Passage provides transformative benefits over conventional tunneling methods, de-risking your project and delivering superior value.

Dramatically Increased Safety during Construction: This method significantly reduces the need for extensive, high-risk underground excavation and temporary shoring. The tunnel is built by assembling pre-fabricated structural plates within a carefully managed trench (cut-and-cover) and then backfilled, minimizing worker exposure to the most hazardous aspects of tunneling.
 

Pain point requirements

The customers of this project mainly use it in urban subway construction, and the specific requirements are as follows:

1. New pipe corridors are built above existing subway tunnels, and the settlement requirement is <5mm

2. The high groundwater level leads to high risks in traditional excavation

3. It is necessary to meet the requirements of laying multiple pipelines for electricity/gas/water services in the same compartment

Solution

After research and discussion by our factory's technical team, high-strength corrugated pipes are used for construction. The specific plan is as follows:

1. Customization High-strength corrugated pipe jacking construction plan:

2. 3.5m diameter corrugated pipe (wall thickness 16mm, ring stiffness ≥12.5kN/m²)

3. Rubber ring + epoxy resin double seal between pipe sections

4. Built-in pipeline bracket pre-buried system

5. Intelligent jacking monitoring (real-time correction accuracy ±1cm)

Implementation results

1. Successfully passed under the operating subway line, with a maximum settlement of only 3.8mm

2. Reduced the demolition area by 80% compared with the open excavation plan

3. Became a "Non-excavation Technology Demonstration Project" of the Ministry of Housing and Urban-Rural Development

List of processing and manufacturing equipment

Our Qualifications and Expertise

Our technical authority is built on a foundation of proven innovation and strategic partnerships. We hold over ten national invention patents and maintain a deep, collaborative relationship with Dr. Liang Shiqiang's team from the Chinese Academy of Sciences for advanced anti-corrosion and structural safety support. This expertise is driven by our highly educated team, including engineers with master's degrees, and is validated by our successful track record of completing critical projects for major state-owned enterprises and public institutions.

Custom Engineering Services

We specialize in developing fully customized solutions tailored to the precise operational requirements of each client. Our process involves a close collaboration with your team, leveraging professional 3D3S design software and our partnership with the Shandong Xinda Engineering Design Co., Ltd. to optimize every detail. We actively incorporate feedback and adapt designs to solve specific challenges, ensuring the final chimney system delivers superior structural integrity, safety, and a perfect fit for your facility's unique environment

1. We are a well-known factory in the industry in China with 20 years of production experience.
2. Quality control is carried out throughout the entire production process.
3. A comprehensive inspection before installation is carried out before packaging.
4. Our products are all ISO 9001 certified.
5. Vibration reduction design: The pipe wall interlayer is filled with polymer damping materials, and the vibration transmission loss is ≥25dB;Precise settlement control: differential settlement ≤1/1500 (GB 50268), with grouting compensation system;BIM collaboration: pre-installed subway shield machine guide interface, construction error ≤5mm.

1. Is this method suitable for constructing actual subway train tunnels?
While ideal for pedestrian underpasses, utility corridors, and connecting tunnels between stations, using this for the main running tunnels of a subway depends heavily on the project's specific geotechnical conditions and design parameters. It is an excellent solution for many parts of a modern subway system.

2. How does the corrugated pipe structure handle the immense weight of the earth and traffic above?
The strength is not from the steel alone. The system is engineered as a "soil-steel composite structure." The deep corrugations give the steel incredible stiffness, but it works in partnership with the carefully compacted soil (engineered backfill) around it. This integrated system distributes the immense load around the arch, creating a structure that is both flexible and incredibly strong.

3. What is the interior of the passage like for pedestrians?
The interior is fully customizable. Once the main structural shell is in place, it can be finished with a variety of systems. This can include a smooth, cast-in-place concrete liner, pre-cast interior wall panels, or modern architectural finishes with integrated lighting, ventilation, and safety systems to create a bright, safe, and welcoming pedestrian environment.

You can contact us in the following ways:

WhatsApp：

Mail：steelchimney.tengshida@gmail.com

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